(5) Phosphoric Acid Three Ethyl Ester (Flame Retardant TEP) Is A High Boiling Point Solvent, Rubber And Plastic Plasticizer, Also Used As Raw Materials For The Production Of Pesticides, Used As The Ethyl Reagent And The Production Of Vinyl Ketone. In Japan, 70% Of The Product Is Used For The Catalyst.What Is Phosphoric Acid Three Ethyl Ester?Triethyl Phosphate (TEP)